7890

• UCREFRP Catalog Number: 7890
• Author: U.S. Fish and Wildlife Service.
• Title: Region 6, Fish and Wildlife Service Guidelines Directing Captive Propagation Of Listed And Candidate Fish.
• USFW Year: 1996.
• USFW - Doc Type: \
• Copyright Material: NO

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E. Opportunities for Effective Management of Genetic Resources. Some
restoration and recovery actions have higher priorities than others with
regard to protecting and maintaining genetic diversity. Application of
management opportunities (See Box 2) ensures that restoration and
recovery is completed in a manner that maintains genetic diversity or
causes the least adverse affects. Restoration and recovery efforts will
emphasize preserving and enhancing natural habitats.
Box 2. Opportunities for effective management of genetic resources in
listed and candidate fish stocks. (Listed by priority;
Modified from Riggs 1990)
1. Conserve populations or stocks for their genetic potential for
recovery, applicable legal mandates, and social or cultural values.
2. Facilitate natural recruitment to maintain self-sustaining
populations through protection and restoration of habitat.
3. Maintain natural genetic diversity in situations where
supplementation with captive-reared fish is necessary.
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4. Employ breeding strategies that will result in genetic diversity
similar to wild stocks where stocking of captive-reared fish
is intended to complement natural recruitment.
5. Augmentation or restoration stocking will supplement or reestablish
stocks in waters where little or no recruitment occurs by native
or naturalized populations.
6. Thoroughly evaluate all experimental stocking prior to any
large-scale augmentation or restoration stocking.
F. Production Strategies. Three production strategies can be used to restore
and recover listed and candidate fishes (Riggs 1990):
1. All Natural. Establish a refuge or genetic conservation area to manage
a natural population without any captive propagation or reintroduction.
2. Supplementation. Restore natural spawning through habitat restoration,
captive propagation and reintroduction while minimizing genetic risks .
3. All Ca tive-Reared. Maximize hatchery contribution to maintain
populations or stocks with little or no expectation of restoring natural
production.
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